[THIN] Printer still going offline randomly after pse400w2k3r05

Our busiest printer kept going offline with the symptomns excatly described in PS4 R05, as per below

 

Printers might go off-line at random while print jobs are still pending.

[From PSE400W2K3R05][#178026]

 

Ive applied R05 but were still having the same problem. Basically it gets to about 70 jobs in the queue then goes offline. Has anyone had this issue and managed to fix it before I start thinking about the Native Driver ?

 

Thanks

 

Andy